Abstract
Many farmers resort to using subsoiler plows with a straight
shank to alleviate soil compaction, but require a high draft. To
process these problems subsoilers with bent and curved shanks
have been designed and manufactured. In the current study, the
efficiency of soil loosening (cm2
. kN-1
), draft force (kN), wasted
power due to slippage (kW), fuel consumption (L.ha.-1
), and
disturbed area (m2
) was investigated for two soil textures (silty
clay and silty loam), three types of shanks (straight, curved, and
bent), and three tillage depths (35,45, and 55) cm. The results
show the superiority of the bent shank at a tillage depth (35) cm
in both soil types, registered less draft force, fuel consumption,
and wasted power due to slippage compared to straight and
curved shanks. Also, the bent shank recorded the highest
efficiency of soil loosening at a tillage depth (35) cm in both soil
types. Besides that, the bent shank at a depth of (35) cm in both
soil types achieved the highest disturbed area. Moreover, at all
tillage depths in both soil types, the bent shank reduced the draft
force, fuel consumption, and wasted power by slippage by (30%,
19%), (19%, 10%), and (30%,15%) compared to the straight and
curved shanks, respectively. While at all tillage depths in both
soil types, the bent shank increased the disturbance area and
efficiency of soil loosing by (7%, 4%) and (15%, 5%) compared
to the straight and curved shanks, respectively.
shank to alleviate soil compaction, but require a high draft. To
process these problems subsoilers with bent and curved shanks
have been designed and manufactured. In the current study, the
efficiency of soil loosening (cm2
. kN-1
), draft force (kN), wasted
power due to slippage (kW), fuel consumption (L.ha.-1
), and
disturbed area (m2
) was investigated for two soil textures (silty
clay and silty loam), three types of shanks (straight, curved, and
bent), and three tillage depths (35,45, and 55) cm. The results
show the superiority of the bent shank at a tillage depth (35) cm
in both soil types, registered less draft force, fuel consumption,
and wasted power due to slippage compared to straight and
curved shanks. Also, the bent shank recorded the highest
efficiency of soil loosening at a tillage depth (35) cm in both soil
types. Besides that, the bent shank at a depth of (35) cm in both
soil types achieved the highest disturbed area. Moreover, at all
tillage depths in both soil types, the bent shank reduced the draft
force, fuel consumption, and wasted power by slippage by (30%,
19%), (19%, 10%), and (30%,15%) compared to the straight and
curved shanks, respectively. While at all tillage depths in both
soil types, the bent shank increased the disturbance area and
efficiency of soil loosing by (7%, 4%) and (15%, 5%) compared
to the straight and curved shanks, respectively.
Keywords
disturbed area
Draft force
efficiency of soil loosening
Fuel consumption
subsoiler plow shanks
Abstract
Many farmers resort to using subsoiler plows with a straight
shank to alleviate soil compaction, but require a high draft. To
process these problems subsoilers with bent and curved shanks
have been designed and manufactured. In the current study, the
efficiency of soil loosening (cm2
. kN-1
), draft force (kN), wasted
power due to slippage (kW), fuel consumption (L.ha.-1
), and
disturbed area (m2
) was investigated for two soil textures (silty
clay and silty loam), three types of shanks (straight, curved, and
bent), and three tillage depths (35,45, and 55) cm. The results
show the superiority of the bent shank at a tillage depth (35) cm
in both soil types, registered less draft force, fuel consumption,
and wasted power due to slippage compared to straight and
curved shanks. Also, the bent shank recorded the highest
efficiency of soil loosening at a tillage depth (35) cm in both soil
types. Besides that, the bent shank at a depth of (35) cm in both
soil types achieved the highest disturbed area. Moreover, at all
tillage depths in both soil types, the bent shank reduced the draft
force, fuel consumption, and wasted power by slippage by (30%,
19%), (19%, 10%), and (30%,15%) compared to the straight and
curved shanks, respectively. While at all tillage depths in both
soil types, the bent shank increased the disturbance area and
efficiency of soil loosing by (7%, 4%) and (15%, 5%) compared
to the straight and curved shanks, respectively.
shank to alleviate soil compaction, but require a high draft. To
process these problems subsoilers with bent and curved shanks
have been designed and manufactured. In the current study, the
efficiency of soil loosening (cm2
. kN-1
), draft force (kN), wasted
power due to slippage (kW), fuel consumption (L.ha.-1
), and
disturbed area (m2
) was investigated for two soil textures (silty
clay and silty loam), three types of shanks (straight, curved, and
bent), and three tillage depths (35,45, and 55) cm. The results
show the superiority of the bent shank at a tillage depth (35) cm
in both soil types, registered less draft force, fuel consumption,
and wasted power due to slippage compared to straight and
curved shanks. Also, the bent shank recorded the highest
efficiency of soil loosening at a tillage depth (35) cm in both soil
types. Besides that, the bent shank at a depth of (35) cm in both
soil types achieved the highest disturbed area. Moreover, at all
tillage depths in both soil types, the bent shank reduced the draft
force, fuel consumption, and wasted power by slippage by (30%,
19%), (19%, 10%), and (30%,15%) compared to the straight and
curved shanks, respectively. While at all tillage depths in both
soil types, the bent shank increased the disturbance area and
efficiency of soil loosing by (7%, 4%) and (15%, 5%) compared
to the straight and curved shanks, respectively.
Keywords
disturbed area
Draft force
efficiency of soil loosening
Fuel consumption
subsoiler plow shanks